We had no idea that what’s needed to convert an internal combustion engine to steam power is actually rather trivial. [David Nash] shows us how it’s done by performing the alterations on the engine of a string trimmer. These are the tools used to cut down vegetation around obstacles in your yard. The source of the engine doesn’t really matter as long as it’s a 2-cycle motor.
This engine had one spark plug which is threaded into the top of the block. [David] removed this and attached his replacement hardware. For now he’s using compressed air for development, but will connected the final version to a boiler.
There are only a couple of important parts between the engine and the boiler. There’s an in-line oil reservoir to help combat the corrosive nature of the steam. There is also a check valve. In the video after the break [David] shows the hunk of a ball-point pen that he uses to actuate the check valve. It’s really just a spacer that the piston pushes up to open the valve. This will be replaced with a metal rod in the final version.
Continue reading “How to convert an internal combustion engine to run from steam power”
This all-mechanical hexapod (translated) was meticulously planned and beautifully constructed. It’s not craning its neck to see what’s ahead. That’s a smoke stack for the steam engine which propels the machine.
Mechanically the legs were the hardest part. That’s only because the steam engine was not built from scratch. It’s a Wilesco D14 which is powered by solid fuel tablets. It puts out high RPM but low power so the gear ratio was set at 286:1 to make the most of its output.
The legs themselves are made of brass rods. These are anchored on one side of a larger gear, with a pivot point that allows the leg to slide vertically. The result is best seen in the clip after the break. As the drive wheel rotates, the pivot point moves the body forward until the foot is lifted by the sliding motion of the rod. It ends up looking more elegant than some of the more dexterous hexapods, but it lacks the ability to turn.
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It’s not often we see a build that turns you into a better cook without any electronics whatsoever. [Chris]’s method of baking better bread with steam is one of those builds, and we’re more than willing to test it out on our own.
If you’ve ever tried to bake bread at home, you’ll quickly notice the crust is much thicker and harder than a loaf available at a bakery. The thickness of the crust can be controlled, however, with a careful application of steam. To make a better crust, [Chris] used a pressure cooker fitted with a valve to inject steam into an oven through his oven’s exhaust. Not only does this gelatinate the starches in the bread crust, but it keeps this gelatin from hardening too quickly.
The end result is a thin, golden brown crust that makes for the perfect loaf of bread. Of course, the proper application of steam does take a little bit of practice. If someone is up to the task of Arduinofying this hack with a few solenoid valves, PID sensors, and a high-temperature humidity sensor, send it in and we’ll put it up.
This auto-flute does it with steam. Well, electricity gets its piece of the action too as the tone holes are opened and closed using a set of solenoids.
We’re at a loss on how the sound is actually produced. We would think that a penny whistle has been used here, except if that were the case the solenoid nearest the kettle would have no use. Then again, after watching the demo after the break we’re not sure that it does have much of an effect. It may be meant to stop the sound but it doesn’t really work all that well.
At any rate we’d love to see some spin-off hacks. Assuming the plastic can stand up to the steam heat this would be a perfect robot controller for recorder controlled snake. You can get a recorder for a buck at the right dollar store, and solenoids can be made out of simple materials. If you know of a way to produce the sound yourself, all it takes are a few careful calculations to place the tone holes.
Continue reading “Steam fife”
We’re going to straight out agree with [Pete] on how surprisingly quiet doorbells are now a days, and if we had it our way we would put his Lunkenheimer train whistle doorbell in every home*. The setup he uses is surprisingly simple, opting for a pre-built wireless doorbell that signals a microcontroller which in turn drives a relay and solenoid. While he does include a video, we felt it didn’t quite show the intensity of these whistles.
*HaD is not responsible for hearing loss and subsequent melted brains.
This steam-powered tank is really something of a steam-electric hybrid. Steam provides the locomotion, but an electrical system provides the remote control and steering. A full boiler will provide 10-15 minutes of operation which you can see in the video after the break. Before you leave a nasty comment: Yes, we realize this project is from several years ago. It’s new to us and the completion date doesn’t diminish the novelty of this well-executed build. This is the quality and uniqueness we’re used to seeing from [Crabfu].
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When we saw the video of the Phasma insectoid robot above, we immediately thought of the iSprawl. After checking out their site, it turns out that the two are connected in some way, we’re not sure how, maybe just inspiration. The Phasma gives us a little more insight into the construction of the bot. The photos are highly detailed so you can see how the drive works, using the sliding cables to extend the “feet”. It seems quite agile in the video. The drive system, working off of a single cam seems like it would be easy to convert to steam. We would love to see that.
[via the pink tentacle]